Now that the concept and general mechanical background of the gods of Theros is well-known, Wizards of the Coast is gradually rolling out the individual card spoilers for them. Now, it seems, according to MTGSalvation.com Rumor Mill user Joneleth Irenicus of Italy, Purphoros (or Purforos, as his name is spelled in Italian) is next in line. The site to watch is metagame.it, and MTGSalvation and other sites will surely have English translations of the Italian text very quickly.
The name was, indeed, confirmed by the translation of the Italian name as Purphoros, God of the Forge, and we got to see that his activated ability costs 2R as well. Hopefully, his will be as explosive as his moods - perhaps something like "target creature gains double strike until end of turn?" Or else something a little techier but more in line with his artistic nature - "Copy target activated or triggered ability you control. You may choose new targets for the copy."
Check back here at 24:00 GMT+1/6 PM Eastern Standard Time to find out exactly what Purphoros is like.